Fatigue crack propagation behavior in dual-phase steel
- PAEC, Dera Ghazi Khan (Pakistan)
- Manchester Materials Science Center (United Kingdom)
The fatigue crack propagation in dual-phase steel was studied with the objective of developing ferritic-martensitic microstructures via intercritical annealing and thermomechanical processing. It was found that the changes in fatigue crack propagation rates and in the threshold stress intensity range, {Delta}K{sub th}, resulting from microstructural variations, were directly related to tensile strength in the same manner that was observed in other types of structural steels. it was also observed that the relationship between tensile strength and fatigue crack propagation in intercritically annealed and thermomechanically processed dual-phase steel was much the same as for conventional steels of similar strength level.
- OSTI ID:
- 351508
- Journal Information:
- Journal of Materials Engineering and Performance, Vol. 8, Issue 2; Other Information: PBD: Apr 1999
- Country of Publication:
- United States
- Language:
- English
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